/*

    Dateiverwaltung - File management in your browser
    Copyright (C) 2017 Ulrich Hilger, http://uhilger.de

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as
    published by the Free Software Foundation, either version 3 of the
    License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

package de.uhilger.filecms.api;

import de.uhilger.wbx.api.ApiBase;
import de.uhilger.wbx.data.FileRef;
import java.io.File;
import java.util.logging.Logger;

/**
 *
 */
public abstract class Api extends ApiBase {
  
  private static final Logger logger = Logger.getLogger(Api.class.getName());

  public static final String WBX_DATA_PATH = "daten/";
  public static final String PUB_DIR_PATH = "www/";
  public static final String HOME_DIR_PATH = "home/";
  public static final String PUB_DIR_NAME = "Oeffentlich";
  //public static final String HOME_DIR_NAME = "Persoenlicher Ordner";
  public static final String HOME_DIR_NAME = "Persoenlich";
  public static final String WBX_ADMIN_ROLE = "wbxAdmin";
  
  public static final String WBX_BASE = "$basis";
  public static final String WBX_DATA = "$daten";
    
  /**
   * Einen relativen Pfad in einen absoluten Pfad der WebBox 
   * aufloesen.
   * 
   * Nur die absoluten Pfade zu PUB_DIR_NAME, HOME_DIR_NAME 
   * sowie WBX_BASE und WBX_DATA werden ausgegeben. Letztere 
   * beiden nur fuer Nutzer mit der Rolle WBX_ADMIN_ROLE.
   * 
   * D.h., es werden nur Pfade aufgeloest, die sich innerhalb 
   * des Ordners der WeBox befinden.
   * 
   * @param relPath
   * @return 
   */
  protected File getTargetDir(String relPath) {
    logger.fine(relPath);
    File targetDir;
    String targetPath = null;
    if(relPath.startsWith(PUB_DIR_NAME)) {
      targetPath = PUB_DIR_PATH + getUserName() + relPath.substring(PUB_DIR_NAME.length());
      targetDir = new File(getBase().getAbsolutePath(), targetPath);
    } else if(relPath.startsWith(HOME_DIR_NAME)) {
      targetPath = HOME_DIR_PATH + getUserName() + relPath.substring(HOME_DIR_NAME.length());
      targetDir = new File(getBase().getAbsolutePath(), targetPath);
    } else if(getRequest().isUserInRole(WBX_ADMIN_ROLE)) {
      logger.fine("in admin role");
      if(relPath.startsWith(WBX_BASE)) {
        logger.fine("is base");
        targetPath = getCatalinaBase();
        targetDir = new File(targetPath, relPath.substring(WBX_BASE.length()));
      } else if(relPath.startsWith(WBX_DATA)) {
        targetPath = getWbxDataDir();
        logger.fine("is data, combine " + targetPath + ' ' + relPath.substring(WBX_DATA.length()));
        targetDir = new File(targetPath, relPath.substring(WBX_DATA.length()));
      } else {
        targetDir = getDefaultDir(relPath);
      }
    } else {
      // kann eigentlich nicht sein..
      targetDir = getDefaultDir(relPath);
    }
    logger.fine("returning targetDir " + targetDir.getAbsolutePath());
    //File targetDir = new File(getBase().getAbsolutePath(), targetPath);
    return targetDir;
  }
  
  protected File getDefaultDir(String relPath) {
    String targetPath = PUB_DIR_PATH + getUserName() + relPath.substring(PUB_DIR_NAME.length());
    return new File(getBase().getAbsolutePath(), targetPath);
  }
  
  protected FileRef getBase() {
    FileRef base = null;
    Object o = getFileBase();
    if(o instanceof File) {
      File file = (File) o;
      base = new FileRef(file.getAbsolutePath(), file.isDirectory());
    }
    return base;
  }
  
}